JP4065042B2 - Door lock - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sliding protrusion locking member having a high crime prevention property and a rotary protrusion sickle piece combined door lock.
[0002]
[Prior art]
As a conventionally known locking member with a sliding projection and a rotary projection sickle piece, there is a door lock as shown in Japanese Utility Model Publication No. 45-18399.
[0003]
[Problems to be solved by the invention]
As shown in FIG. 5, this door lock is provided with a cylinder lock b at the upper part of a lock case a, and a symmetrical intermediate transmission with respect to a center line swinging left or right by the cam piece c. A pin e which pivotally supports the piece d in the middle of the lock case and is fixed to the lower end of the intermediate transmission piece d has a sickle piece f which is symmetrical with respect to the center line and is pivotably supported. Overlapping and slidable in the lateral direction, the structure is loosely inserted into the corresponding holes, which can be used not only for sliding doors but also for sliding doors. It is.
[0004]
When this door lock is used for an opening door, because of its structure, the hook g fits into the hole of the metal fitting h to lock the door and at the same time the sickle piece f is the edge of the fitting hole of the metal fitting h. Since it engages with the inner surface of the lock case a, a bar or the like is inserted from the gap between the front plate of the lock case a and the metal fitting h to widen the space between the front plate of the lock case a and the metal fitting h. Therefore, it is possible to predict that the sickle piece f blocks the relationship between the hooks g and the metal fittings h and attempts to unlock them illegally, and the crime prevention function is high.
[0005]
However, in the door lock described above, the heel g is in the shape of a heel bent from an iron plate in an L-shape. In addition to giving a sense of anxiety, it is possible to clearly recognize the locking member 閂 g and sickle piece f, and to attack each locking member accurately, making it easy to break. There was also the above problem.
[0006]
OBJECT OF THE INVENTION
According to the present invention, a sickle piece is built in a locking member corresponding to a rod, and the sickle part of the sickle piece is rotated and protruded from an opening provided on the lower side or upper side of the locking member only when the locking member slides and protrudes. In the locked state, the locking state is robust, such as making it difficult to unlock illegal intruders, so that it is not known that it is double-locked with a sickle piece other than the locking member, and in appearance An object of the present invention is to provide a sliding protrusion locking member and a rotary protrusion sickle door combination type door lock that have a good appearance and a very high crime prevention effect.
[0007]
[Means for Solving the Problems]
The door lock according to the present invention is interlocked with a locking member that protrudes and retracts from the front plate of the lock case by rotation of a hub that rotates by operating a manual operation member such as a cylinder lock or thumb turn in the lock case, and a locking operation of the locking member. In the door lock provided with a sickle piece that pivots and the sickle portion pivots and disappears from the front plate of the lock case , the locking member has a space portion inside the first component member and the second component member In the space portion of the first component member and the second component member, at least a sickle portion of a sickle piece is sandwiched between the first component member and the second component member so as to be rotatable. 2 Opening part in which the sickle part of the sickle piece is provided at the lower side or upper side of the locking member when the locking member is slid and protruded by pivotally supporting the component member and the sickle piece with a pin inserted into the long hole of the sickle piece out Kaido突from a further said first component and a second component A cover to conceal, is characterized in that are concealed at least sickle portion of the sickle piece.
[0008]
[Effects of the Invention]
When the locking member slides and protrudes, the sickle portion of the sickle piece built into the locking member pivots and protrudes from the opening provided on the lower side or upper side of the locking member, and the locking member is the end of the fitting hole of the bracket. At the edge, the sickle piece engages with the inner surface of the edge of the fitting hole.
[0009]
【Example】
An embodiment of the door lock of the present invention will be specifically described with reference to the drawings.
1 is a partially longitudinal side view in the unlocked state of the door lock of the present invention, FIG. 2 is a partially longitudinal side view in the locked state of the door lock, and FIG. 3 is a longitudinal sectional view in FIG. 4 is a partial cross-sectional plan view of a dead bolt.
[0010]
Reference numeral 1 denotes a lock case attached to the open end side of the pivotable hinged door D. Reference numeral 2 denotes a manual operation member (not shown) such as a cylinder lock (not shown) or a thumb turn attached to the outer surface of the side plate 11 of the lock case 1. hub that rotates via the connecting rod 21 provided in the manual operating member by the operation of not), 3 and 4, first, in the second configuration member, first configuration member 3 is a flat plate that constitutes the locking member The second constituent member 4 has a U-shaped cross section, and both constituent members 3 and 4 are sandwiched between pin members 5 in a state in which a sickle piece described later can be rotated between the two. It is designed to be integrated by being swaged.
[0011]
6 is a sickle piece having a sickle section 61 to the distal end portion, said first, sandwiched in the space portion S between the second component 3, 4, pin 5 of caulking the both components are formed sickle piece 6 are adapted to penetrate the long hole 62, the proximal end portion of the sickle section 61 and the opposite side of the distal end portion is rotatably pivoted by a pin 63 to the side plates 11, 11 of the lock case 1.
[0012]
Reference numeral 7 denotes a rectangular tube-like cover whose front end side is concealed for concealing the sickle piece 6 together with the first and second constituent members 3, 4. 8 is configured.
[0013]
The cover 7 only needs to cover at least a portion where the locking member 8 protrudes from the lock case front plate 12, but it is needless to say that the cover 7 may be entirely covered.
[0014]
The method of integrating the cover 7 and the components 3 and 4 is to insert the pin 5 into the elongated hole 62 of the sickle piece 6 before pivoting the sickle piece 6 to the lock case 1 with the pin 63. Both ends of the pin 5 are sandwiched between the two constituent members 3 and 4 so as to protrude from the holes 31 and 41 formed in the side surfaces of the two locking members, and the cylindrical cover 7 is attached from the front end side of the two constituent members. The end of the pin 5 protruding from a hole 72 formed in the side surface of the cover is crushed and fixed so as to be integrated with both constituent members 3 , 4. A hole 71 as an opening through which the sickle portion 61 can protrude when the sickle piece 6 rotates is formed in the lower side of the portion.
[0015]
In the drawing, 9 is a plate spring for click motion when the hub 2 rotates and the locking member 8 is pushed and retracted by the hub, and 10 is a metal fitting attached to the door frame W side. .
[0016]
Next, the operation state of the door lock of the present invention will be specifically described.
When the door 2 in FIG. 1 is closed and unlocked, when the hub 2 is rotated clockwise through the connecting rod 21 by operating a manual operation member such as a cylinder lock or thumb turn, it is pushed by the hub. The locking member 8 protrudes from the lock case front plate 12 and is inserted into the fitting hole 101 of the receiving bracket 10 attached to the door frame W. The sliding piece 6 slides in the protruding direction so that the sickle piece 6 has a long hole. It is pushed by the pin 5 inserted into the pin 62 and pivots counterclockwise around the pin 63 as a fulcrum, and the sickle portion 61 at the tip portion pivots and protrudes from the hole 71 in the lower side portion of the cover 7 and the fitting 10 is fitted. 2 is inserted into the joint hole 101 and reaches a position where it engages with the inner surface of the edge 102 of the fitting hole, and the locked state shown in FIG. 2 is obtained.
[0017]
In the locked state of FIG. 2, when the hub 2 is rotated counterclockwise via the connecting rod 21 by the operation of a manual operation member such as a cylinder lock or a thumb turn, the locking member 8 is pushed into the lock case by being pushed by the hub. At the same time, the sickle piece 6 rotates clockwise and returns to the unlocked state of FIG.
[0018]
Thereafter, the above operation is repeated every time a manual operation member such as a cylinder lock or thumb turn is operated, and unlocking and unlocking are performed.
[0019]
【The invention's effect】
According to the door lock according to the present invention, the sickle piece is built in the locking member, and the sickle portion of the sickle piece is rotated and projected from the hole on the lower side or the upper side of the locking member only when the locking member slides. In addition to the locking member, the sickle piece is double-locked by the sickle piece, so that the locked state is robust, and the sickle piece is covered with a cover that conceals the first and second components as the locking member. Since at least the sickle part is also concealed, it is difficult for illegal intruders to find that it is double-locked with a sickle piece in addition to the locking member in the locked state. Not only is the effect extremely high, but in the unlocked state, the sickle piece does not appear to recede into the locking member, so that the appearance is good.
[0020]
In addition, when this door lock is used for locking a sliding door, the locking member acts as a guide when the sickle piece is inserted into the fitting hole of the receiving bracket, and is received when the sickle piece rotates and protrudes. There is an effect that the metal fitting can be reliably engaged with the metal fitting without being in contact with a part of the metal fitting.
[Brief description of the drawings]
FIG. 1 is a partially longitudinal side view of a door lock according to the present invention in an unlocked state.
FIG. 2 is a partially longitudinal side view of the door lock in a locked state.
FIG. 3 is a longitudinal sectional view taken along line 2A-A in FIG.
FIG. 4 is a partial cross-sectional plan view of the locking member .
FIG. 5 is an explanatory view of a conventional door lock.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lock case 2 Hub 3 1st structural member 4 2nd structural member 5 Pin 6 Sickle piece 7 Cover 8 Locking member 10 Receptacle 12 Lock case front board 61 Sickle part 71 Opening part (hole)
101 Fitting hole S space

Claims (1)

A locking member that protrudes and retracts from the front plate of the lock case by rotation of a hub that rotates by operating a manual operation member such as a cylinder lock or thumb turn in the lock case, and a sickle portion that rotates in conjunction with the retracting operation of the locking member. In the door lock with a sickle piece that swivels from the lock case front plate,
The locking member is configured to be integrated and integrated with the first component member and the second component member in a state having a space portion inside, while the sickle piece has a base end portion as a side plate of the lock case. The pivot member is pivotally supported by a pin, the tip portion is a sickle portion, a long hole is formed at a position avoiding the pivot portion and the sickle portion, and the first and second components of the locking member are formed. the said space between the members, at least narrow sickle of sickle piece to pivotally sandwich Mutotomoni, the first component and the second component member and the elongated hole of the pin for fixing the sickle pieces of the locking member is provided with so as to penetrate, sickle portion of the sickle pieces by sliding in the protruding direction of the locking member is pushed to a pin is fitted into the long hole sickle piece, pivotally supported a base end portion of the sickle piece rotated in the locking direction pin as a fulcrum, Kaido突from an opening sickle of sickle piece is provided on the lower side or the upper side portion of the locking member And it is fitted into the fitting hole of the pivot bracket, further wherein the first component and the cover to hide the second component, Tobirajo, characterized in that are concealed at least sickle portion of the sickle piece.

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